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Communication

What is an OPC or Open process control?

What is OPC? OPC means "Open process control" or "Open platform communications" It is a standard...
PLC

PLC programming – Latching relays

The Latching relays are designed to keep the relay closed after the coil power...
Electrical

Introduction to Alternating Current

Introduction AC stands for Alternating Current and is symbolised by “~”. This current alternates both...
Communication

ANTENNAS and it’s size, direction importance

Antennas are vital devices in wireless communication. An antenna is an interface between radio...
Electrical

Difference between the Rotor and the Stator

Introduction The stator and rotor both are the parts of the electrical motor. The significant difference...
Electrical

Difference between Fuses and Circuit breakers

Fuses and circuit breakers are overcurrent protection devices used in electrical circuits, which interrupt...
Control System

What is a PID control action?

TWhat is a controller and why is it required in a process system?What is...
Condition Monitoring

Theory of Vibration sensors

Introduction Sensors used to measure vibration come in three basic types: displacement, velocity, and acceleration....
Instrumentation

Advantages/disadvantages of Pneumatic & Hydraulic Actuators

Pneumatic Actuators A set of devices into with one or more pneumo engines, which are determined...
Instrumentation

Hazardous area classification

The engineer must select the area classification from several categories and ensure that the...
Electrical

Fuse and Types of Fuses

What is a Fuse: The fuse is an electronic device, which is used to protect...
Electrical

What is Marshalling Cabinet or Marshalling Panel?

What is the purpose of marshalling cabinets? Marshalling means grouping of I/O. The marshalling panel...
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